Add --display option to git cl description

git_cl.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Copyright (C) 2008 Evan Martin <martine@danga.com>
 
 """A git-command for integrating reviews on Rietveld."""
 
 from distutils.version import LooseVersion
@@ skipping 1798 matching lines @@
     print '\n%s%s  %s%s' % (
         color, message['date'].split('.', 1)[0], message['sender'],
         Fore.RESET)
     if message['text'].strip():
       print '\n'.join('  ' + l for l in message['text'].splitlines())
   return 0
 
 
 def CMDdescription(parser, args):
   """Brings up the editor for the current CL's description."""
+  parser.add_option('-d', '--display', action='store_true',
+                    help='Display the description instead of opening an editor')
   auth.add_auth_options(parser)
   options, _ = parser.parse_args(args)
   auth_config = auth.extract_auth_config_from_options(options)
   cl = Changelist(auth_config=auth_config)
   if not cl.GetIssue():
     DieWithError('This branch has no associated changelist.')
   description = ChangeDescription(cl.GetDescription())
+  if options.display:
+    print description.description
+    return 0
   description.prompt()
   if cl.GetDescription() != description.description:
     cl.UpdateDescription(description.description)
   return 0
 
 
 def CreateDescriptionFromLog(args):
   """Pulls out the commit log to use as a base for the CL description."""
   log_args = []
   if len(args) == 1 and not args[0].endswith('.'):
@@ skipping 1717 matching lines @@
 if __name__ == '__main__':
   # These affect sys.stdout so do it outside of main() to simplify mocks in
   # unit testing.
   fix_encoding.fix_encoding()
   colorama.init()
   try:
     sys.exit(main(sys.argv[1:]))
   except KeyboardInterrupt:
     sys.stderr.write('interrupted\n')
     sys.exit(1)